Customizing The Modem Configuration Files - IBM pSeries 690 Service Manual

Customizing the Modem Configuration Files

You can create your own modem configuration files or modify the samples provided. After you customize
your modem configuration files, you must access them through the Configure Remote Maintenance Policy
Service Aid rather than from the service processor menus.
If you have already set up your serial ports, line speeds, authorizations, and telephone numbers from the
service processor menus, use the service aid to specify your customized modem configuration files.
If you have not already set up your serial ports, line speeds, authorizations, and telephone numbers from
the service processor menus, use the service aids to set them while you specify your customized modem
configuration files.
To disable Auto-Reliable Mode testing of the remote modem, use the sample modem configuration file
/usr/share/modems/modem_f.cfg as a model that you can modify, as follows:
1. Find the necessary command in your modem manual.
2. Copy the /usr/share/modems/modem_f.cfg file to a new file with a different name (for example,
modem_fx.cfg).
3. In the new file (modem_fx.cfg), change the line Send "ATE0T\r" to Send "ATcccE0T\r" where ccc is
the added command as specified in your modem manual, as follows.
Change the third line of each of the following stanzas:
v condout
v condin
v ripo
4. Save the changes.
IBM 7852-400 DIP Switch Settings
If you are using a 7852-400 modem to enable service processor communications, for proper operation, the
dual inline package (DIP) switches must be set according to the following table:
Switch Position
1 Up
2 Up
3 Down
4 Down
5 Up
6 Up
7 Up
8 Down
9 Down
10 Up
11 *Up
12 *Down
13 UP
14 Up
15 Up
16 Up
* Only switches 11 and 12 are changed from the factory default settings.
1082 Eserver pSeries 690 Service Guide
Function
Force DTR
Flow Control &E4
Result Codes Enabled
Modem Emulation Disabled
Auto Answer Enabled
Maximum Throughput Enabled
RTS Normal Functions
Enable Command Mode
Remote Digital Loopback Test Enabled
Dial-Up Line Enabled
AT Responses Enabled (Extended Responses Disabled)
Asynchronous Operation
28.8KB Line Speed
CD and DSR Normal Functions
2-Wire Leased Line Enabled